Nail-setting machine for boots and shoes



No. 354,878. Patent-ed Dec. 21, 1886.

W FL.

Wi y W NITED STATES PATENT OFFICE.

WILBUR F. WRIGHT, OF NASHUA, NEW HAMPSHIRE.

NAIL-SETTING MACHINE FOR BOOTS AND SHOES.

ESPECIFICATION forming part of Letters Patent No. 354,878, datedDecember 21., 1886.

Application filed October 6,1886.

Serial No. 215,457. (No model.)

Nashua, in the county of Hillsborough and State of New Hampshire, haveinvented a certain new and useful Improvement in NaiLSetting Machinesfor Boots and Shoes, of which the following is a specification.

My improvement relates to machines for automatically setting nails inboot or shoe soles or heels, or in perforated forms for soles or heels,and is an improvement on the nailcarrier shown in Patent No. 198,590,dated December 25, 1877, theobject of said improvement being to renderthe quarter-turn hole in said carrier adjustable for nails of differentsizes.

In the accompanying drawings, Figure 1 is a plan of a nail-carrierprovided with my improvement, representing the slide as drawn out toenlarge the quarter-turn hole; Fig. 2, an isometric view of a portion ofa nail-carrier near its front end provided with my improvement, theslide not being drawn out. Fig. 3 is like Fig. 2, except that the slideis represented as drawn out; Fig. 4., a plan of the parts shown in Fig.3, and occupying the position shown in said Fig. 3; Fig. 5, a plan ofthe slide detached; Fig. 6, a front end elevation of the carrier andslide; Fig. 7, a vertical section on the line :0 x in Fig. 4.

The nail-carrier herein described is intended to be like thenail-carrier shown in said patent in all respects, except as hereinaftermentioned, and is used in connection with the other parts of thenail-setting machine therein shown and described, the purpose of saidmachine being to introduce the nails point first into the workpreviously perforated, or into a perforated form, the nails to beoperated on by the machine being of the well-known wedgeshaped form cutfrom sheet metal, and caused -to advance on said carriers by alongitudinal reciprocating motion imparted to said carriers, whereby thenails are in turn carried over an opening or quarter-turn hole until theweight of the head projecting over the hole causes the nail to oversetand drop head first through said hole into a feed-channel, as may befully understood by a reference tosaid patent. It is evident that if thequarter-turn hole he too short or the nail be too long the nail willreach across said slot and rest upon the other side, because the weightof said nail,

or rather of that part of it which projects over k said hole, will notbe sufficient to overset the nail before the head of the nail willarrive at the other side of the hole and be supported thereby.

In the drawings, b represents the nail-carrier;-p, a converging groovethat ascends from the rear of the machine toward the central part of thecarrier, there terminating in a groove, q, only wide enough to allow asingle nail to pass at a time; r, a diverging groove into which thesurplus of nails overflows; s, a waste -vent through which thesuperfluous nails are allowed to'escape; t, the quarter-turn hole lyingin the groove q, or an enlargementthereof, into which hole the nails, ifmoving head first, drop, as above stated, the nails which are movingpoint first reaching over to the other side of said hole until the headof the nail gets over said hole, and the weight of said head causesthese last-named nails also to fall head first into said hole. Theseparts all operate in the usual manner, provided the nails used do notexceed a certain length; but when the nail is so long that the weight ofthe part of the nail which projects over the hole is not sufficient tooverset it the nail continues to move on past said hole.

Heretofore in changing from the use of nails for which the machine wasspecially adapted to a much longer nail it has been necessary to removethe carriers 1) and substitute for them other similar carriers having alonger quarterturn hole. My improvement obviates the necessity ofchanging the carriers when chang ing from nails of one length to nailsof another.

It will be observed that to adapt the carrier b to the use of nails ofgreatly-varying lengths it is not sufficient to make the quarter-turnhole long enough to operate in the desired manner upon the longestnails, because if said hole were permanently lengthened to operatesuccessfully upon the longest nails it would allow shorter nails to fallpoint first if y make the carrier 1) in two parts by forming a slide, towhich is secured the part g, which forms the bottom of the groove q infront of said hole t, and to which is also secured the projectinginclined piece '0, by which the nails which pass the quarter-turn holeare delivcred onto another carrier and again circulated, as described insaid patent.

The slide w, which carries the parts g 1:, is mortised into said carrierb, and is free to slide thereon to enable it to be drawn out from thebody of the-carrier, the mortise b in said carrier having its top andbottom parallel with each other, and the slide 10 having a tenon, 10,which enters said mortise, and which is provided with a'vertical slot,w, Figs. 5 and 7, through which a screw, 1)", is passed down from thetop of said carrier through said mortise into the bottom of the same,the screw turning loosely in said carrier above said mortise, and whenturned down sufiiciently drawing the top and bottom of the mortise inclose contact with the top and bottom of said tenon and holding theslide in position. The part g, which forms the bottom of the grooveqbetween the quarter-turn hole and the incline 0, guides the slide andprevents it from turning horizontally, said part q being as wide as saidquarter-turn hole.

It is evident that drawing out the slide, as indicated in Figs. 3 and 4,lengthens the quarter-turn hole and adapts it for use in the mannerabove described upon nails of greater length. v

I claim as my invention 1. In a nail-setting machine, the carrierprovided with a nail-groove and with a quarterturn hole arranged in saidgroove and adjustable in length by means substantially as described, toadapt it to operate upon nails of different lengths, substantially asand for the purpose specified.

2. The carrier provided with a quarter-turn hole, said carrierconsisting of the combination of the body ,of the carrier and a slideadapted to move in said body, said quarterturn hole being formed partlyin said body and partly in said slide, whereby the length of saidquarter-turn hole may be varied by the movement of said slide, saidquarter-turn hole being arrangedin a nail-guidinggroove which iscontinuous in said body and said slide, as and for the purposespecified.

3. The combination of the body of the carrier provided with a mortise,and the slide provided with a tenon to enter said mortise, and with alongitudinal slot, and ascrew tnrning in said body and passing throughsaid mortise and through said slot in said slide, to allow said slide tobe adjusted when' said screw is loosened,and to contract said mortise toprevent said slide from moving when said screw is tightened, said bodyand slide being provided with a continuous nail-groove, and with acontinuous quarter-turn hole arranged at the bottom of said nail-grooveand formed partly in said body and partly in said slide, to vary thelength of said quarter-turn hole, and

to adapt said carrier to be used with nails of difi'erent lengths, asand for the purpose specified. 1 In witness whereof Ihave signed thisspecification, in the presence of two witnesses, this 4th of October,1886.

WILBUB F. WRIGHT.

